/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.myfaces.lifecycle;

import javax.faces.context.FacesContext;
import javax.faces.event.PhaseId;

/**
 * Implements the PhaseExecutor for a lifecycle
 *
 * @author Nikolay Petrov
 *
 */
interface PhaseExecutor {
  
  /**
   * Executes a phase of the JavaServer(tm) Faces lifecycle, like UpdateModelValues.
   * The <code>execute</code> method is called by the lifecylce implementation's private
   * <code>executePhase</code>.
   * @param facesContext The <code>FacesContext</code> for the current request we are processing 
   * @return <code>true</code> if execution should be stopped
   */
    boolean execute(FacesContext facesContext);
    
  /**
   * Returns the <code>PhaseId</code> for which the implemented executor is invoked 
   * @return
   */
  PhaseId getPhase();
}